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प्रश्न
How is Biotechnology useful in the development of agriculture?
उत्तर
- Agricultural yield and crop variety can be improved by implementing biotechnological techniques for agriculture.
- Hybrid seeds are developed, in which two different crops are recombined.
- Genetically modified crops having desired characters are developed by incorporating a foreign gene into the genome of crops by biotechnological techniques.
- Genetic modification enables the development of high-yielding varieties with resistance to diseases, weeds, herbicides, cold, drought and soils with high alkalinity. e.g. Bt cotton, golden rice, etc.
- Bacteria like Rhizobium, Azotobacter, Nostoc, Anabaena and plants like Azolla can be used as biofertilizers to improve the abilities of nitrogen fixation and phosphate solubilization by plants.
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संबंधित प्रश्न
Which one of the following is useful in treatment of burns and wound healing?
Illustrate any ‘three’ genes which can be used in gene therapy.
Name the enzyme responsible for the delay in the ripening of tomato fruit.
Fill in the blank and complete the statement.
The disease related with the synthesis of insulin is --- --- ---.
Is biotechnology an independent subject?
| Column A | Column B | ||
| 1 | Koji | a | Yeast |
| 2 | Gari | b | Japan |
| 3 | Temph | c | Fermentation |
| 4 | Vinegar | d | Indonesia |
| 5 | Baking | e | Africa |
Vaccines are
Expand the following acronym which is used in the field of protechnology.
YAC
Expand the following acronym which is used in the field of protechnology.
dNTP
Fill in the blanks and complete the chart.
| GMO | Purpose |
| i. Bt cotton | ____________ |
| ii. _____________ | Delay the softening of tomato during ripening. |
| iii. Golden rice |
____________ |
| iv. Holstein cow | ____________ |
Which Recombinant proteins is obtained for Hepatitis-B by r-DNA technology.
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Complete the chart.
Define genetically modified crops. Give two examples.
What is meant by vaccination?
______ is not used as bio-fertilizers.
Which of the following statement regarding the structure of proinsulin and mature insulin are not correct?
- Proinsulin is made up of three polypeptide chains - A, B and C.
- The C-polypeptide chain with 33 amino acids is removed prior to insulin formation.
- Mature insulin is made up of 51 amino acids arranged in two polypeptide chains - A and B.
- Polypeptide chain A has 30 amino acids and chain B has 21 amino acids.
- Polypeptide chains A and B are interconnected by one S-S linkage.
Choose the correct option.
Give the name of first transgenic plant.
Write a short note on golden rice.
